WO2020186772A1

WO2020186772A1 - Motion mechanism for synchronous action of tools and cutter

Info

Publication number: WO2020186772A1
Application number: PCT/CN2019/115835
Authority: WO
Inventors: 冯震; 李英杰; 杜兆峰; 郑章超
Original assignee: 青岛尘霸工贸有限公司
Priority date: 2019-03-21
Filing date: 2019-11-06
Publication date: 2020-09-24
Also published as: CN109849082A; CN109849082B

Abstract

Disclosed is a motion mechanism for synchronous action of tools, comprising at least two rocker mechanisms, a transmission mechanism and at least two eccentric rotation mechanisms. The eccentric rotation mechanisms are used for driving a tool assembly (1) to move up and down. The rocker mechanisms realize synchronous action by means of the transmission mechanism. The eccentric rotation mechanism includes an eccentric wheel (10) and a rotating shaft (8), the rotating shaft passes through the eccentric wheel and connects the rocker mechanism, the eccentric wheel is mounted on a bracket (7) and is fixedly connected to the rocker mechanism, and the eccentric wheel can rotate on the bracket via the swinging of the rocker mechanism. The eccentric rotation mechanisms cooperate with the rocker mechanisms and the transmission mechanism. A tool assembly is installed on the eccentric wheel rotation mechanism. The eccentric rotation mechanism is provided with an eccentric wheel and a rotating shaft connected to the tool assembly so as to synchronously drive the tool assembly to move up and down for cutting plates. Further disclosed is a cutter.

Description

Kinematic mechanism and cutter for synchronous tool action

Technical field

The invention relates to a cutter transmission device, belonging to the field of cutting tools, and in particular to a movement mechanism and a cutter for synchronous action of a cutter.

Background technique

The cutter is also called the cutter or the edge trimmer. It includes two modes of electric and manual operation. The common cutter is usually composed of worktable, cutter, handle and other parts. The handle and cutter are an integrated structure. The cutter and the worktable Hinge, through the handle operation to cut the material.

Existing cutters for wood, floor, PVC board and other construction and decoration materials. Although the structure is improved compared with the previous cutters, they are still large in size, inconvenient to carry and carry, and high in cost; simple in structure, and the cutter The function is single. In this type of cutter, the electric mode is easy to generate dust due to the fast blade speed and multiple friction materials, and it is more difficult to collect dust and remove chips; the manual mode has higher resistance and is more laborious to use. Especially for plastic floor cutting, due to the large impact force, it will damage the internal structure of the plastic floor and cause problems such as cracking of the cut surface. The material is also prone to collapse during cutting, which poses safety risks.

For example, a Chinese patent (Authorized Announcement No. CN204914008U) discloses "a plastic floor cutting machine" for cutting a plastic floor, including, a frame body with a work surface on it, the work surface is formed with up and down through And, the cutter body has opposite first and second ends, wherein the first end of the cutter body is a cutting portion, and the second end of the cutter body is a holding Section; In addition, the first end of the cutter body is in the through groove and is rotatably connected with the body body, so that the rotation projection surface of the cutter body falls on the through groove. The utility model has the advantages that various plastic floors can be cut conveniently, and the efficiency of laying plastic floors is greatly improved.

The Chinese Patent (Authorization Announcement No. CN 203993987U) discloses "a plastic floor guillotine cutting machine", which includes a work surface, an auxiliary table, a ruler, a combined blade, a cutter head splint, a handle, a handle, an auxiliary knife seat and a supporting foot, An auxiliary table is provided on one side of the working table, and the auxiliary table is slidingly matched with the working table through the guide groove of the working table. The auxiliary table is provided with a ruler seat tray. The ruler seat tray is slidingly matched with the auxiliary table through the auxiliary table guide groove, and the ruler seat tray is fixed A ruler is connected, one end of the work surface is connected with a combined blade through a cutter head clamping plate, the combined blade is connected with the handle, and the handle is fixedly connected with a handle. The combined blade is also connected with an auxiliary knife seat through bolts, and a rotatable blade is provided under the working table. Supporting feet.

Summary of the invention

The invention provides a motion mechanism and a cutter for synchronous action of the cutter, which are used to solve the problems of the existing cutters that are laborious in use, easy to damage the plate, and easy to cause material collapse.

In order to achieve the purpose of the present invention, the following technical solutions are adopted:

The motion mechanism used for the synchronous action of the tool includes a rocker mechanism, a transmission mechanism and an eccentric rotation mechanism. The eccentric rotation mechanism is used to drive the tool assembly to move up and down; there are at least two sets of the rocker mechanism and the eccentric rotation mechanism. Synchronous action between the rocker mechanisms is achieved through a transmission mechanism; the eccentric rotating mechanism includes an eccentric wheel and a rotating shaft, the rotating shaft passes through the eccentric wheel and is connected to the rocker mechanism, the eccentric wheel is mounted on the bracket, and the eccentric wheel is connected to the The rocker mechanisms are fixedly connected, and the eccentric wheel can rotate on the bracket through the swing of the rocker mechanism.

In order to further improve the effect of the present invention, the following technical solutions can also be adopted:

The above-mentioned motion mechanism for the synchronous action of the cutter, the rocker mechanism includes two sets of rocker rods symmetrically arranged on both sides of the bracket, the eccentric wheel is installed in the bracket hole opened on the bracket, and the rocker and The eccentric is fixedly connected by a connecting piece.

The above-mentioned motion mechanism for the synchronous action of the tool, the transmission mechanism includes a push rod shaft and a push rod, multiple sets of rocker mechanisms are respectively equipped with corresponding push rod shafts, and the push rod shafts are movably connected with the rocker mechanism. The push rod is fixedly connected with multiple sets of push rod shafts.

In the above-mentioned movement mechanism for the synchronous action of the cutter, the push rod is provided with a spring and a spring cover, the spring cover is fixedly installed with respect to the push rod, the spring is arranged between the push rod shaft and the spring cover, and the spring passes The push rod shaft and the spring cover form a compressed state.

In the above-mentioned movement mechanism for the synchronous action of the cutter, a guide sleeve is fixedly installed on the outer circumference of the rotating shaft of the eccentric rotating mechanism, and the guide sleeve is matched with the cutter assembly. Specifically, a guide sleeve slide groove is installed on the tool assembly, and the guide sleeve slide groove corresponds to the rotating shaft, and multiple guide sleeves slide synchronously in the multiple guide sleeve slide grooves to drive the tool assembly to move up and down synchronously.

The present invention also discloses a cutting knife, which includes any one of the above-mentioned movement mechanism, a chassis, a mounting seat, a driving mechanism, and a tool assembly. The bracket is fixedly installed on the mounting seat, and the lower part of the mounting seat is fixed to the chassis, and the tool assembly Connected with the eccentric rotating mechanism, the driving mechanism is used to drive the tool assembly to move up and down through the motion mechanism. By adjusting the relative position of the eccentric wheel and/or the push rod shaft in the transmission mechanism, the height position of the longitudinal ends of the tool assembly can be changed.

The cutter as described above, characterized in that, the driving part includes a handle, one end of the handle is fixedly connected with the upper part of a set of rocker mechanism at the outermost longitudinally, and the other end of the handle is a free end, which is relatively arranged at the outermost longitudinally. Above another set of rocker mechanism.

In the cutter as described above, the mounting seat is a U-shaped member with an opening on one side, two sets of the mounting seat are symmetrically arranged at the longitudinal ends of the motion mechanism, the chassis is fixed between the two sets of mounting seats, and the bracket is fixed On the upper side of the opening of the mounting seat.

In the cutting knife as described above, the chassis is provided with a mat strip and a mat clamp plate, the mat clamp plate clamps the mat strip on the chassis through a connecting piece, and the mat strip is located below the cutter assembly.

In the cutter as described above, a small baffle assembly for adjusting the cutting angle of the material is provided on the chassis.

Compared with the prior art, the beneficial effects of the present invention:

1. The motion mechanism and cutter of the present invention change the original handle or electric device and the cutter integrated structure, the cutter is hinged installation, but the whole tool assembly is pressed down by the handle or electric method, the cutter assembly is affected The pushing force is the same. The eccentric wheel rotating mechanism of the present invention is matched with the rocker mechanism and the transmission mechanism. The tool assembly is installed on the eccentric wheel rotating mechanism. The eccentric rotating mechanism is provided with an eccentric wheel and a rotating shaft connected with the tool assembly. Not limited to) Synchronously drive the up and down movement of the tool assembly, which can realize the synchronous up and down movement of the tool assembly, which is used for the cutting processing of the plate.

2. Unlike the prior art that usually uses an eccentric wheel to perform mechanical reciprocating motion, in the present invention, two or more eccentric wheels are used to mount on a bracket, and a transmission mechanism composed of a push rod and a push rod shaft or a similar connecting rod Mechanism to ensure that each eccentric wheel can rotate synchronously. Moreover, by adjusting the relative position of each eccentric wheel, the height adjustment of the cutting edge in the tool assembly at the longitudinal front and rear ends can be achieved. It can be set to the front high and back low or the front low and back high mode to match the thickness and characteristics of the plate. The cutting area is reduced under pressure, and the cutting is more labor-saving.

3. In manual mode, the configured handle is installed on one of the rocker mechanisms to increase the moment arm and drive the eccentric wheel. When the stretching support rod is not working, it can be stored in the chassis or on the mounting seat, which reduces the volume of the machine and is convenient to carry; it is pulled out to form a stable support when working. The chassis supports the plate to be cut, and a small baffle is installed on it. By adjusting the direction and method of plate placement, the angle can be adjusted to achieve bevel cutting. The mounting seat is a U-shaped component, which can realize the longitudinal cutting of a certain width of sheet metal.

4. The pad plywood is to install the plastic pad on the chassis, under the tool assembly, to protect the blade during cutting. The function of the spring and the spring cover is to prevent the blade from falling automatically under the action of gravity. No matter whether it adopts electric or manual operation, the invention has compact structure, small volume, convenient handling and carrying; it can realize various functions such as tilting and longitudinal cutting of plates. The invention provides small impact force for the tool assembly, solves the problems of traditional cutting that are prone to burrs and irregular cutting surfaces, has good cutting effect, more flexible cutting, and high cutting precision; it will not generate dust, board collapse and other problems. Solve environmental and safety hazards. Solve the damage to the plate during the cutting process, protect the cutting safety, and facilitate the operation of the operator.

Description of the drawings

Figure 1 is an exploded schematic view of the structure of the cutter of the present invention;

Figure 2 is a partial enlarged schematic diagram of I in Figure 1;

Figure 3 is a schematic plan view of the structure of Figure 1;

Figure 4 is a left side view of Figure 3;

Figure 5 is a perspective view of Figure 3;

Fig. 6 is another side perspective view of Fig. 3.

Reference signs: 1-tool assembly, 2-chassis; 3-pad strip, 4-pad strip splint, 5-mounting seat, 6-stretch support rod, 7-bracket, 8-rotor, 9-guide sleeve, 10 -Eccentric wheel, 11-first rocker, 12-second rocker, 13-push rod shaft, 14-push rod, 15-spring, 16-handle, 17-spring cover, 18-small baffle, 19- Guide sleeve chute, 20-end plate, 21-chute, 22-slider.

detailed description

In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

In order to facilitate the understanding and description of this embodiment, the left and right sides shown in FIG. 1 are vertical, the corresponding expressions are front and rear ends, the top and bottom shown in FIG. 1 are horizontal, and the corresponding expressions are left and right.

As shown in Fig. 1, the motion mechanism for the synchronous action of the tool disclosed in this embodiment includes a rocker mechanism, a transmission mechanism and an eccentric rotation mechanism. The eccentric rotation mechanism is used to drive the tool assembly 1 to move up and down. Cutting and processing of plates.

In this embodiment, there are two sets of rocker mechanism and eccentric rotation mechanism. According to the cutting needs of the longitudinal length of the cutter assembly 1, or the length and width of the plate, more than two sets of rocker mechanism and eccentric rotation mechanism can also be provided. The set of rocker mechanisms are synchronized through the transmission mechanism, and each rocker structure corresponds and cooperates with the eccentric rotating mechanism, so as to ensure accurate and smooth synchronized actions.

As shown in Figure 1, the eccentric rotation mechanism includes an eccentric wheel 10 and a rotating shaft 8. The rotating shaft 8 passes through the eccentric wheel 10 and is connected to the rocker mechanism. The eccentric wheel 10 is installed in the bracket hole opened on the bracket 7, and the eccentric wheel 10 is connected to the rocker. The rod mechanisms are fixedly connected by screws. The eccentric wheel 10 rotates in the bracket hole driven by the swing of the rocker mechanism. After the transmission mechanism drives the two sets of rocker mechanisms to act in synchronization, each rocker mechanism synchronously drives the eccentric wheel 10 and The rotating shaft 8 rotates, and the rotating shaft 8 cooperates with the cutter assembly 1 so that the cutter assembly 1 can move up and down to complete the cutting and cutting of the plate.

Specifically, as shown in FIG. 2, a plastic guide sleeve 9 is installed on the outer circumference of the rotating shaft 8. The guide sleeve 9 is matched with the guide sleeve slide groove 19 fixed on the tool assembly 1, and the multiple guide sleeves 9 are respectively installed in the multiple guide sleeve slide grooves. Synchronous sliding within 19 drives the tool assembly to move up and down synchronously.

The shape and structure of the two sets of eccentric wheels 10 are the same, and the bracket 7 is directly opened with a mounting hole that matches the eccentric wheel 10. The bracket 7 can be set independently or used as an upper beam frame that matches the mounting seat in the cutter of the present invention. In the horizontal direction, the bracket 7 is provided with two sets, and the cutter assembly 1 is arranged between the two sets of brackets 7 to protect the safety of the cutter and the equipment and use safety.

As shown in Figure 1, Figure 5, and Figure 6, the rocker mechanism includes two sets of rockers symmetrically arranged on both sides of the bracket 7. The two sets of rockers are the first rocker 11 and the second rocker 12, respectively. The rod 11 and the second rocker 12 are symmetrically arranged on the outside of the two sets of brackets 7 in the lateral direction. Because the upper part of the second rocker 12 is connected with the handle 16 as the driving mechanism, the second rocker 12 is relative to the first rocker. The rod 11 is taller, and in order to make the handle 16 have an upward tilt, its upper part is bent to the longitudinal rear side. At the same time, in order to ensure the stability of the connection between the rocker and the eccentric 10, two sets of connections are provided between the rocker and the eccentric 10 Rod.

As shown in Figures 1 and 3, the transmission mechanism is installed above the tool assembly 1, including a push rod shaft 13 and a push rod 14. Because the rocker mechanism cooperates with the eccentric wheel rotation mechanism, the push rod shaft 13 needs to drive the rocker mechanism to move. Therefore, the number is the same as the rocker mechanism, the push rod shaft 13 is movably connected with the rocker mechanism, and the push rod 14 is fixedly connected with multiple sets of push rod shafts 13.

A spring 15 and a spring cover 17 are installed on the push rod 14. The lower end of the spring cover 17 is fixed to the bracket 7, and the spring cover 17 is fixedly installed relative to the push rod 14. The spring 15 is located between the spring cover 17 and the push rod shaft at the longitudinal rear end. In the meantime, the spring 15 is in a compressed state by the action of the spring cover 17 and one of the push rod shafts 13, and the spring cover 17 can maintain the spring 15 to have a certain pushing force on the rear side of the push rod 14 to ensure that the handle 16 rebounds freely and avoid the tool assembly 1 automatically falls under the action of gravity, causing safety hazards.

The spring cover 17 can also be set in a longitudinal position adjustable form, so as to adjust the position of the spring 15 as required. In addition to the safety protection function mentioned above, the spring cover 17 can also be used as a limit for the downward movement of the handle 16. Protect the quality of the blades and other parts of the tool assembly 1.

In order to ensure the stability of the up and down movements of the tool, an end plate 20 is provided at the longitudinal front and rear ends of the two sets of brackets 7, and a sliding groove 21 is provided on the end plate 20. The sliding block 22 fixed at the end of the tool assembly 1 must be slid The groove 21 slides in a limited position. Therefore, the height of the slide groove 21 is matched with the amplitude of the up and down movement of the tool assembly 1.

The movement mechanism of the present invention changes the original handle 16 or the electric device and the tool integrated structure, and the tool is hingedly installed. Instead, the tool assembly 1 is pressed down by the handle 16 or the electric way, and the tool assembly 1 receives The pressing force is consistent. The eccentric rotation mechanism of the present invention is matched with the rocker mechanism and the transmission mechanism. The cutter assembly 1 is installed on the eccentric rotation mechanism. The eccentric rotation mechanism is provided with a rotating shaft 8 and a guide sleeve 9 to connect the eccentric wheel 10 and the cutter assembly 1. Two points (not limited to) synchronously drive the up and down movement of the tool assembly 1, which can realize the synchronous up and down movement of the tool assembly 1, and is used for the cutting process of the plate.

The specific implementation of the materials and methods, take the drawings of the specification as the drawings, and implement the proportions and matching methods of the various components in the drawings of the specification, using strong adhesive connection, welding, riveting, flange connection, integral molding connection, etc. The connection method can be based on actual connection strength requirements during actual production, without creatively choosing the corresponding connection method, thickness and strength of the connection point.

A cutter disclosed in the present application includes the above-mentioned movement mechanism, a chassis 2, a mounting base 5, a driving mechanism, and a tool assembly 1. The bracket 7 is fixedly mounted on the mounting base 5, and the lower part of the mounting base 5 is fixed to the chassis 2. The cutter assembly is connected with the eccentric rotating mechanism, and the driving mechanism is used for driving the cutter assembly to move up and down through the linkage mechanism. The driving mechanism adopts the handle 6, which is a manual operation mode. The driving mechanism can also be set to an electric or hydraulic driving mode, but it will increase the weight and cost relatively.

As shown in Figure 1, Figure 3-Figure 6, the cutter in this embodiment is composed of three parts: a movement mechanism, a body and a tool assembly 1.

As shown in FIG. 2, a guide sleeve slide groove 19 is provided on the top of the tool assembly 1 and a knife edge is provided at the lower end. The guide sleeve slide groove 19 is matched with the rotating shaft 8 and the guide sleeve 9.

The body includes a chassis 2, a mounting seat 5, a tensile support rod 6 and a bracket 7, a plastic cushion strip 3 and a cushion strip splint 4. The mounting seat 5 is provided with two front and rear panels, and two upper beams are provided on the left and right to support the board. , Movement mechanism and tool assembly 1.

The cushion strip splint 4 installs the cushion strip 3 on the chassis 2 and is located under the knife body to protect the blade during cutting. When the stretching support rod 6 is not working, it is contracted inside the cutter to reduce the volume of the equipment and is convenient to carry; it can be pulled out during work to form a stable support. The chassis 2 supports the plate to be cut, and a small baffle 18 is installed on it to adjust the angle for bevel cutting. The mounting base 5 is a U-shaped member with an opening on the right side to realize longitudinal cutting of a certain width of sheet material.

The movement mechanism includes a rocker mechanism, a transmission mechanism and an eccentric rotation mechanism. The eccentric rotation mechanism is used to drive the tool assembly 1 to move up and down. There are two symmetrically arranged eccentric wheels 10 at the longitudinal front and rear ends respectively, which are respectively mounted on the two brackets 7 on the left and right sides of the transverse direction. At the same time, the outer side of each eccentric wheel 10 is fixedly connected with the rocker, through the first rocker 11, The two rockers 12 and the link mechanism composed of the push rod 14 and the push rod shaft 13 realize that each eccentric wheel 10 can rotate synchronously. The spring 15 and the spring cover 17 provided on the push rod shaft 13 can prevent the tool assembly from falling automatically under the action of gravity and eliminate potential safety hazards.

By adjusting the relative position of the eccentric wheel 10 and/or the push rod shaft 13 in the transmission mechanism, the height position of the longitudinal ends of the tool assembly can be changed. In this embodiment, the second rocker 12 symmetrically left and right is provided with three pairs of adjusting holes with different heights. The adjusting holes are matched with the push rod shaft corresponding to the second rocker 12, and the position of the push rod shaft is adjusted. , So as to realize the three relative position changes of the longitudinal ends of the tool assembly being horizontal, front high and low back or front low and back high. By adjusting the eccentric wheel 10, the height position of both ends of the tool in the longitudinal direction can be changed, which is similar to the above method.

Unlike the prior art that usually uses an eccentric to perform mechanical reciprocating motion, the eccentric in the present invention is used to realize synchronous rotation and relatively independent position adjustment. Specifically, it is constituted by a push rod 14 and a push rod shaft 13. The transmission mechanism or similar linkage mechanism enables each eccentric wheel 10 to rotate synchronously. Moreover, by adjusting the relative position of each eccentric wheel 10, the height adjustment of the cutting edge in the longitudinal front and rear ends of the tool assembly 1 can be realized, and it can be set to the front high and the low or the front and the low to meet the thickness and characteristic requirements of the plate. The cutting area becomes smaller under the same unit of pressing force, and the cutting is more labor-saving.

The technical contents not described in detail in the present invention are all known technologies.

Claims

The movement mechanism for the synchronous action of the tool is characterized in that it includes a rocker mechanism, a transmission mechanism and an eccentric rotation mechanism. The eccentric rotation mechanism is used to drive the tool assembly to move up and down; the rocker mechanism and the eccentric rotation mechanism are at least provided with The two sets and multiple sets of rocker mechanisms are synchronized through the transmission mechanism; the eccentric rotating mechanism includes an eccentric wheel and a rotating shaft, and the rotating shaft is connected to the rocker mechanism after passing through the eccentric wheel, and the eccentric wheel is mounted on the bracket. The eccentric wheel is fixedly connected with the rocker mechanism, and the eccentric wheel can rotate on the support through the swing of the rocker mechanism.
The movement mechanism for the synchronous action of the tool according to claim 1, wherein the rocker mechanism includes two sets of rockers symmetrically arranged on both sides of the bracket, and the eccentric wheel is installed in the bracket hole opened on the bracket. Inside, the rocker and the eccentric are fixedly connected by a connecting piece.
The kinematic mechanism for synchronous tool action according to claim 1, wherein the transmission mechanism includes a push rod shaft and a push rod, and multiple sets of rocker mechanisms are respectively configured with corresponding push rod shafts, the push rod shaft and the rocker The rod mechanism is movably connected, and the push rod is fixedly connected with multiple sets of push rod shafts.
The movement mechanism for the synchronous action of the cutter according to claim 3, wherein the push rod is provided with a spring and a spring cover, the spring cover is fixedly installed with respect to the push rod, and the spring is arranged on the push rod shaft and the spring cover In between, the spring is in a compressed state through the push rod shaft and the spring cover.
The kinematic mechanism for tool synchronous action according to claim 1, wherein a guide sleeve is fixedly installed on the outer circumference of the rotating shaft of the eccentric rotating mechanism, and the guide sleeve is matched with the tool assembly.
The cutter is characterized in that it comprises the movement mechanism according to any one of claims 1-5, a chassis, a mounting seat, a driving mechanism, and a tool assembly. The bracket is fixedly installed on the mounting seat, and the lower part of the mounting seat is fixed to the chassis. The assembly is connected with an eccentric rotating mechanism. The drive mechanism is used to drive the tool assembly to move up and down through the motion mechanism. By adjusting the relative position of the eccentric wheel and/or the push rod shaft in the transmission mechanism, the height position of the longitudinal ends of the tool assembly can be changed.
The cutter according to claim 6, wherein the driving part comprises a handle, one end of the handle is fixedly connected with the upper part of a set of rocker mechanism on the outermost side in the longitudinal direction, and the other end of the handle is a free end, which is arranged in the longitudinal direction. Above the outermost rocker mechanism.
The cutter according to claim 6, wherein the mounting seat is a U-shaped member with one side opening, and the mounting seat is symmetrically provided with two sets at both ends of the movement mechanism, and the chassis is fixed on the two sets Between the mounting seats, the bracket is fixed on the upper side of the opening of the mounting seat.
The cutting knife according to claim 6, characterized in that, a cushion strip and a cushion strip splint are provided on the chassis, and the spacer strip clamps the spacer strip on the chassis through the connecting piece, and the spacer strip is located on the cutter Below the component.
The cutter according to claim 6, wherein a small baffle assembly for adjusting the cutting angle of the material is provided on the chassis.